--- libfad-0.9.6/src/Makefile.orig	2018-08-30 18:18:26.332943742 +0200
+++ libfad-0.9.6/src/Makefile	2018-08-30 18:24:06.672939854 +0200
@@ -1,5 +1,8 @@
 VER=0.9.6
+DESTDIR=
 PREFIX=/usr/local
+INCLUDEDIR=$(PREFIX)/include
+LIBDIR=$(PREFIX)/lib
 
 OBJS=fad.bitmap.o fad.bits.o fad.button.o fad.dl.o fad.dynarray.o \
 		 fad.fontext.o fad.frame.o fad.jpeg.o fad.shape.o fad.morph.o \
@@ -39,17 +42,17 @@
 	rm $(OBJS) *.txt *.bak *.copy $(SHAREDLIBM) $(SHAREDLIBV) $(SHAREDLIB) $(STATICLIB) -f
 
 install: $(SHAREDLIBV)
-	-@if [ ! -d $(PREFIX)/include ]; then mkdir -p $(PREFIX)/include; fi
-	-@if [ ! -d $(PREFIX)/lib ]; then mkdir -p $(PREFIX)/lib; fi
-	cp fad.h $(PREFIX)/include
-	cp $(SHAREDLIBV) $(PREFIX)/lib
-	-@if [ ! -f $(SHAREDLIB) ]; then \
-	cd $(PREFIX)/lib; \
+	-@if [ ! -d $(DESTDIR)$(INCLUDEDIR) ]; then mkdir -p $(DESTDIR)$(PREFIX)/include; fi
+	-@if [ ! -d $(DESTDIR)$(LIBDIR) ]; then mkdir -p $(DESTDIR)$(LIBDIR); fi
+	cp fad.h $(DESTDIR)$(INCLUDEDIR)
+	cp $(SHAREDLIBV) $(STATICLIB) $(DESTDIR)$(LIBDIR)
+	-@if [ ! -f $(DESTDIR)$(LIBDIR)$(SHAREDLIB) ]; then \
+	cd $(DESTDIR)$(LIBDIR); \
 		ln -s $(SHAREDLIBV) $(SHAREDLIB); \
 		ln -s $(SHAREDLIBV) $(SHAREDLIBM); \
 	fi
 
 uninstall:
-	rm $(PREFIX)/include/fad.h \
-	cd $(PREFIX)/lib; \
-	rm $(SHAREDLIBV) $(SHAREDLIB) $(SHAREDLIBM)
+	rm $(DESTDIR)$(INCLUDEDIR)/fad.h \
+	cd $(DESTDIR)$(LIBDIR); \
+	rm $(SHAREDLIBV) $(SHAREDLIB) $(SHAREDLIBM) $(STATICLIB)
--- libfad-0.9.6/player/Makefile.orig	2006-09-12 22:06:23.000000000 +0200
+++ libfad-0.9.6/player/Makefile	2018-08-30 18:37:48.349597141 +0200
@@ -1,3 +1,7 @@
+DESTDIR=
+PREFIX=/usr/local
+BINDIR=$(PREFIX)/bin
+
 PLAYER=fap
 
 #DEBUG_CFLAGS= -g
@@ -35,9 +39,9 @@
 	rm fap *.o *.txt *.bak *.out .svn/ -rf
 
 install: $(SHAREDLIBV)
-	-@if [ ! -d $(PREFIX)/bin ]; then mkdir -p $(PREFIX)/bin; fi
-	cp fap $(PREFIX)/bin
+	-@if [ ! -d $(DESTDIR)$(BINDIR) ]; then mkdir -p $(DESTDIR)$(BINDIR); fi
+	cp fap $(DESTDIR)$(BINDIR)
 
 uninstall:
-	cd $(PREFIX)/bin; \
+	cd $(DESTDIR)$(BINDIR); \
 	rm fap